Question

Can someone help me find the square root of 17x^2 - 90x + 125?

Answer 1

did you try the quadratic formula?

Answer 2

no I will do that now :)

Answer 3

17=a
-90=b
125=c
for the quadratic formula

Answer 4

thanks I already plugged those in, I'm solving now

Answer 5

I got 90 sqrt -11.764 hows that look? @dariogpx

Answer 6

one sec

Answer 7

i got 100/34 and -70/34

Answer 8

im going to check again

Answer 9

ok i was wrong i am left with a negative 400 in the radical............are you with me @bugzkilla ?

Answer 10

yeah I'm here I'm trying to attach my work for you

Answer 11

you asked in your question about 'square root' of the equation - did you mean the 'roots'?

Answer 12

the part that was cut off was / 34

Answer 13

the two answers at the end of using the quadratic formula @MrNood

Answer 14

Be aware that the 'roots' of a quadratic are not related to 'square roots'

Answer 15

you have to get the negative out of the radical with the imaginary number i
so it will be the imaginary number "i" the square root of 400

Answer 16

i am aware of that i just know what he means @MrNood

Answer 17

@dariogpx - I am really addressing my point to @bugzkilla
HE is the one who wrote 'square root'

Answer 18

90 \[\sqrt{-90^2 -4(17)(125)}\]

Answer 19

all divided by 2(17)

Answer 20

That is correct - but as dariogpx says - you cannot have a real root of a negative number - so the roots are complex in this case.

Answer 21

\[90\sqrt{-11.764}\]

Answer 22

ok thanks for the help @MrNood @dariogpx